Sectional building-block.



T'. BURCHARTZ. SEGTIONAL BUILDING BLOCK.` APPLIUATION rum JUN; 21, 1910.

986, 1 32, l Patented Mar. 7, 1911.

gufi

yrimnntmisn BUncHABiJz, or NEW You, 1r. Y. p

specillreetionvot4 Letters Patent. I

Application medium 21, '1910. seriai suresnes; i

To all 'wlzmne'tmel/ i;comme:A Be it known that I, FERDINANmBUnCH- Aurz, u citizen of the United States, und resident of the borough OMzmhattan, city, county, undy State of. New York, have. in-

yvented certain new and useful Improve-f Sectional 4Buildirig-Bloche, t

ments in which the following is a ,specictioir l M y invention relates to building blocks und has for its' object to construct a hollow building block of' two separate copereting quickly and readilyessemble such sections.'

sections'which, when 4assembled' produce n stronlight :1nd-serviceable'jstructure.

A urther object of4 my invention is to construct the'two sections in a. manner to reduce the cost of irianufature yto a, minimum without sacrificing any-qualities4 as to strength.

und the like and'- to multe it possibleV to Other objects of my invention will appear from the description hereinafter and the features of novelty will be pointed out in the appended claims.

Reference is to be had to the accompany-4 ingr drawings in .which- Figure 1i is a section'on theA line l'-l 4of- -Fig. 2; Fig. 2. is u similari viewon the line q2v-f2 oflfxg. l and Fig. 53 isla-perspective View of the' interior block section.

. section 1 open at suitable materia-l,- Into tlusexterior sec- 4 The -blocl' comprises unexterior tubular both ends und made'of any tion is fitted-:1n interior section made of suitable material and eon'lprlsmg'end plates 2 connected by u cent1-ul web or rib 3 so as to be4 substantially I-shuped.` -This interiorI sect-ion is slipped intothe tubular outelwsec-rl tion -1 so :xs to Vcompletely. vclose `the/open it 4being understood. that -the` ends thereof,

cud plutes 2 ureof n size to secure this re. sultn. The dlstuncebetu-eeu the outer .faces of' the end plates 2 corresponds to the length of the exterior section' so that when the two vsectlolis'ure :issel'nblcd the -elidsof the exterior section und the outer faces of the plates 2 'will be flush with euch other. 4lf

desired the interior section'inmy. be provided 'with more .thun one web oi'- rib 3..

It will bc Seen tlmt b otli block sections ure extremely simple iu construction both .being preferably constructed inl one piece und when' assembled .produce af hollow build-4 ing block .which is light und lyet extremely strong. The 'said' -complete b1oclr"is'ca` able 'of withstanding greatpressure in all irec arid are therefore quickly .and'cheaplymade P'e'eilted Mnnlein;

tions the e'nd plates 2 servmg to-.brace in` one rdirect-ion while. the wells of' the exteriorsec.

tion and the central web' 'oiler resistance to 'u pressure in e;E direction at' nngle'theretoi The' two sections are readily assiembledfthe interior seetid'n being slipped/into the outer f section'end 'when so'` 'assembled may be c0nsired i Y -Varlous changes 1n the speclfic construe` tion shown und described may be mede' withinthe scope fthe claims without departing from the Vspirit; of. my `I cloim 1. A buildingbloclrfeomprisingfun opeii ended'eouter section and; Ye separatei'nner nected by 'a' cement or other binder de# ,section ittedwit-hin seidl outer section'und to 'close the; opposite "open ends "of 'seid outer section.

ended tubulr' outer s'ec'ti'onpletes arrantfed, to t within the open-ends of `said tlibu er .outer section .tovclosesuid ends and a con netlon 'separate from sindv tubular -outer sec-l ti o nund' rigidly connected with said plates. 3. A-.building' bloclccomprising anjo'pen. ended tubular outer sect-ion und n seperate Lshaped interiorv .section 'ldu'pted" to slide pletely clos'e tlie-ends'thero-" 1 ,4. A building. block4 comprising lcomplete tlibularzuter section having openends,

.separate plu-tes arranged fto. snugly fit Suid ',suidjputer section' completely sur rounding the 4inner section in `a di1ectio;1 t. ,en angle'to itsva-x-isr'." 1

2.' A- building. block-comprising en openl 'lurving'speced 'connected portions arranged -within the outer.",tubular'sectlon-and-com#.

lpen ends to ,closethe seme-end 'aeentrul rib Y 'rigidly connected witlneurhpend. pluto'.

I n testimony whereof I huvelieleulito setmy hund in the presence of two subscribing witnesses. f

' FERDINAND BURCHART'?. litmesses 'Y i Jouw A. I" IILENBECK, 

